"Greece's president [has spoken] of 'fear that could develop into panic' at the country's banks in the weeks before fresh elections that could precipitate Athens exit from the euro zone," Reuters reports.

According to the wire service, "afraid of the prospect of rapid devaluation if the country leaves the single currency," many Greeks are pulling euros out of banks, minutes of President Karolos Papoulias's meetings with political leaders indicate. The nation's central bank chief says Greeks pulled at least $894 million out of banks on Monday.

As Reuters has also reported, a "Grexit" from the euro (Greece pulling out of the currency bloc) is being increasingly discussed.